My iPod Touch 4G is no longer accessing my router, yet it can access other routers.

I awoke this morning to find my iPod touch was not connected to the internet, "No big deal" I thought, and went to go connect in the settings. When I went to the settings I clicked on my router and typed in my password correctly, and I waited for it to connect. And waited. And waited. No dice. I turned my iPod on and off again, hoping it would fix it. It didn't. I just went to school without a thought about it. It connected at my school and got full internet access, so I figured it just fixed itself, but when I went home it STILL wasn't working. My laptop and everything else can connect EXCEPT my ipod.

Any help with this?

Also I am running on a belkin router and I use windows 7 if that helps with anything.